﻿#region Copyright Statement
//  ------------------------------------------------------------------------------
//  
//    This file is part of The Streambolics Library.
//    Copyright © 2005-2009, Stephan Leclercq & Streambolics
//    All rights reserved.
//  
//    The Streambolics Library is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//  
//    The Streambolics Library is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//  
//    You should have received a copy of the GNU General Public License
//    along with Streambolics; if not, write to the Free Software
//    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
//  
//  ------------------------------------------------------------------------------
#endregion

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Streambolics.Hp41s
{
    public enum ReferenceType { None, Register, Label, Flag, Tone };

    /// <summary>
    ///     The execption corresponding to a nonexistent reference
    ///     to a register, flag, etc.
    /// </summary>

    public class NonexistentException : EngineException
    {
        private int _Reference;
        private ReferenceType _ReferenceType;

        public NonexistentException (int aReference, ReferenceType aReferenceType)
            : base ("NONEXISTENT")
        {
            _Reference = aReference;
            _ReferenceType = aReferenceType;
        }

        public NonexistentException ()
            : this (0, ReferenceType.None)
        {
        }

        public static void Check (int aReference, ReferenceType aReferenceType, int aMin, int aMax)
        {
            if (aReference < aMin || aReference > aMax)
            {
                throw new NonexistentException (aReference, aReferenceType);
            }
        }
    }
}
